Elastic anesthetic apparatus.



No. 707,623. Patented Aug; 26, I902.

H. NIERIKEB.

ELASTIC ANESTHETIG APPARATUS.

(Application filed Dec. 27, 1901.)

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detailed View of the spiral wire frame.

PATENT OFFICE.

HERMANN NIERIKER, OF ZURICH, SWITZERLAND.

ELASTIC ANESTHETIC APPARATUS.

SPECIFICATION forming part of Letters Patent No. 707,623, dated August 26, 1902.

Application filed December 27, 1901. Serial No. 87,495. (M em pertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

I have applied for patents on the invention herein set forth in the following countries: application in Switzerland on May 28, 1901; application in France on November 28, 1901.

The object of the present invention is an elastic anesthetic apparatus which comprises a disk'of manifold layers of textile material allowing of the passage of air, the said disk having an aperture for introducing a tube or funnel between the layers of fiber of the disk, means for drawing together the lateral wings of the disk, anda spiral wire frame attached to the disk and stiffening it elastically.

A constructional form of this invention is illustrated by way of example in the accompanying'drawings, in which- Figure 1 is a plan view, and Fig. 2 a side view, of the apparatus. Fig. 3 illustrates a Figs. 4, 5, 6, and 7 are diagrams showing the manner of folding the disk. Fig. 8 shows av funnel.

In the example illustrated the disk a consists of a piece of textile material, such as flannel, which allows the air to pass through folded in eight layers into a square. The edges of the superposed layers are sewed together, so that with the exception of an aperture b for inserting a tube 0 or funnel c the disk is closed at all four edges. The side cl of the piece a lies to the inside-that is, toward the face of thepatientand the side 6 to the outside. To the innermost layer but one is stitched a spiral wire frame f, Figs. 3, 4, in the form of a single wavy-edged leaf, united at the base and periphery, which frame imparts an elastic stiffening to the disk. The wings g and h admit of being pressed against each other around the interwoven coils t as axis and when released spring back into the original position shown in Fig. 3. In order that the apparatus may fit properly on the lower half of the face with the nose, the two lateral wings of the piece a are drawn toward one another by means of a safety-pin 7;, whereby the piece takes a doubly-inclined form. An elastic cord m, attached by means of clamps Z to the piece a serves to fix the apparatus to the head. The folding of the piece may be effected, for example, according to the diagrams, Figs. 4 to 7.

The upper corners 1 2 of a square piece of stuff 1 2 5 6, which is out along the line 3 4, are folded over so that they touch one another, Fig. 4. The edges 3 7 of the stuff are sewed together and the wire frame f sewed onto the compartment 8 9 7. The corners 5 6 of the compartment 5 6 9 S, Fig. 5, are then folded over and then the edges 8 4 3 and 9 4. 3, Fig. 6. To widen the aperture b for inserting the anestheticising-tube c 0r funnel c, Fig. 8, the edges 3 10 and 3 11 are drawn into a slight curve. The edges 3 8 and 3 9 of the piece are then sewed together. The compartment 7 S 9 has two layers of material. The compartments 3 1O 8 and 3 ll 9 have each four layers. Finally, the compartments 3 10 8 12 and 3 11 9 13 are folded one after the other (it does not matter in what order) over the lines 3 12 and 3 13, Fig. 7, so that there are 1 two layers of material underneath the wire frame (toward the face) and six layers above it, (outside,) which practically preventsauseless evaporation of the anesthetic outwardly. Of course there may be other methods of foldin g the piece of stuff. The piece a could also consist of single square layers of material superposed and stitched together at the edges. The piece a is preferablyplaced in an easilyremovable washable envelop.

To use the apparatus, it is placed over the nose and mouth of the patient andthe cord m placed around the back of his head,.there being no pressure of the disk against the face to substantially check the breathing. The tube or funnel c is now passed into the aperture 2) between the layers of material of the disk or and lets a sufficient quantity of the anesthetic pass into the disk. The patient now inhales the anesthetic vapor, together with air passing through the stuff and sidewise through the aperture b. When a suflicient dose of the anesthetic has passed out, the .tube or funnel is removed from the apparatus. Duringoperationsinsidethe mouth the disk a can be moved onto the forehead, leaving the mouth free.

The whole apparatus is not a kind of compress, as the disk is constructed more loosely and is provided with a hollow space for receiving the anestheticising medium.

As the head of the patient is inclined back ward during the anestheticising the tube cor funnel c is bent, so that with a backwardlyinclined head the upperpart comes into a vertical or approximately vertical position, so that the quantity of the anesthetic in the tube or funnel can easily be observed.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. A device for administering liquid anesthetics comprising layers of textile material secured at their edges forming a pocket or space Within and having a small opening at one edge, spring-Wire means within the pocket for stiffening and shaping the same, and means for securing the device to the head of the patient, substantially as described.

2. A device for administering liquid anesthetics comprising layers of textile material secured at their edges forming a pocket or space within and having a small opening at one edge, spring-wire means within the pocket for stiifening and shaping the same, means for drawing together the two lateral wings of the device, and means for securing the device to the head of the patient, substantially as described. y

In testimony that I claim the foregoing I have hereunto set my hand this 12th day of December, 1901.

HERMANN NIERIKER.

Witnesses:

A. LIEBERKNECHT, v I-IE MANN HUBER. 

